CN201960090U - Hydraulic sand mold pushing out device - Google Patents
Hydraulic sand mold pushing out device Download PDFInfo
- Publication number
- CN201960090U CN201960090U CN2011200983813U CN201120098381U CN201960090U CN 201960090 U CN201960090 U CN 201960090U CN 2011200983813 U CN2011200983813 U CN 2011200983813U CN 201120098381 U CN201120098381 U CN 201120098381U CN 201960090 U CN201960090 U CN 201960090U
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- China
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- oil cylinder
- piston
- sand mold
- pressure plate
- wear ring
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic sand mold pushing out device which comprises a mold compacting chamber, a link mechanism, a front oil cylinder and a rear oil cylinder, wherein a positive pressure plate is arranged between the mold compacting chamber and the front oil cylinder; a reverse pressure plate is arranged on another side of the mold compacting chamber and fixed on the link mechanism; a cam mechanism is arranged at one end of the link mechanism; two guide rods are arranged at the other end of the link mechanism; the other ends of the guide rods are connected with the rear oil cylinder; and the rear oil cylinder is fixed on an oil cylinder rear stander. The hydraulic sand mold pushing out device provided by the utility model adopts a composite hydraulic cylinder to control the opening and closing of the mold compacting chamber so as to finish the operations of compacting, drawing and pushing out a sand mold; and the guide rods adopts oil-free lubrication bearings.
Description
Technical field
The utility model belongs to machinery manufacturing technology field, is specifically related to a kind of hydraulic pressure sand mold ejecting device.
Background technology
The composite oil cylinder that the mould on end machine uses, total former and later two oil cylinders combine, and its concrete action is: during preceding oil cylinder level run, drive that the pressure plate device is mainly finished the sand mold compacting, released mould assembly, the back mould plays die process.Driving the back-pressure panel assembly during back oil cylinder level run is mainly used in sand mold compacting, front mould molding, closes operation such as die cavity.Existing oil cylinder piston adopts fabricated structure, wear ring adopts copper alloy, oil cylinder guide post and fairlead use copper sheathing, because this device speed of service is very fast, and commutation is frequent, causes easily that piston bolt is loosening, copper alloy wear ring and fairlead wearing and tearing are very fast, cause the part gap of matching to strengthen fast, make that the sand mold operation is not steady, reduced the mould assembly precision.
Summary of the invention
The utility model has overcome the deficiencies in the prior art, a kind of hydraulic pressure sand mold ejecting device has been proposed, described device adopts overall structure, and use the PTFE anti-wear band to be wear ring, solved the easily loosening problem of piston, the positioning accuracy height in service life, the long service life, pollution-free that have prolonged piston.
The technical solution of the utility model is: a kind of hydraulic pressure sand mold ejecting device, comprise die mould chamber, linkage, preceding oil cylinder and back oil cylinder, be provided with pressure plate between described die mould chamber and the preceding oil cylinder, another side in the die mould chamber is provided with the back-pressure plate, described back-pressure plate is fixed on the described linkage, end at described linkage is provided with a cam mechanism, the other end at described linkage is provided with two guide posts, the other end of described guide post is connecting described back oil cylinder, and described back oil cylinder is fixed on behind the oil cylinder on the stand.
Before described, respectively be provided with a piston sealing device in oil cylinder and the described back oil cylinder, described piston sealing device comprises piston, cylinder body and piston rod, between piston rod and piston, be provided with wear ring and two inner seal rings in one, between piston and cylinder body, be provided with wear ring and two exterior seal rings outside one.
Wear ring is the PTFE anti-wear band in described.
Described outer wear ring is the PTFE anti-wear band.
The utlity model has following beneficial effect:
1) piston of hydraulic pressure composite oil cylinder adopts overall structure, and uses the PTFE anti-wear band to be wear ring, has solved the easily loosening problem of piston, has prolonged the service life of piston.
2) guide post and fairlead use Nonlubricated bearing, have improved the mould assembly precision, have prolonged the service life of fairlead, have avoided the pollution of lubricating oil to environment.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is a plan structure schematic diagram of the present utility model.
Fig. 2 is the utility model piston sealing device structural representation.
Among the figure 1, cam mechanism; 2. linkage; 3, back-pressure plate; 4, die mould chamber; 5, fairlead; 6, pressure plate; 7, preceding oil cylinder; 8, guide post; 9, preceding oil cylinder piston; 10, back oil cylinder piston; 11, back oil cylinder; 12, stand behind the oil cylinder; 13, exterior seal ring; 14, outer wear ring; 15, piston; 16, interior wear ring; 17, inner seal ring; 18, cylinder body; 19, piston rod.
The specific embodiment
Further specify below in conjunction with accompanying drawing, and the related scope of unrestricted the utility model.
Referring to illustrated in figures 1 and 2, the utility model mainly comprises cam mechanism 1, linkage 2, back-pressure plate 3, die mould chamber 4, fairlead 5, pressure plate 6, preceding oil cylinder 7, guide post 8, preceding oil cylinder piston 9, back oil cylinder piston 10, back oil cylinder 11, stand 12 etc. behind the oil cylinder, its structural relation is: be provided with pressure plate 6 between described die mould chamber 4 and the preceding oil cylinder 7, another side in die mould chamber 4 is provided with back-pressure plate 3, described back-pressure plate 3 is fixed on the described linkage 2, end at described linkage 2 is provided with a cam mechanism 1, the other end at described linkage 2 is provided with two guide posts 8, the other end of described guide post 8 is connecting described back oil cylinder 11, and described back oil cylinder 11 is fixed on behind the oil cylinder on the stand 12.
This device is mainly finished operations such as the moulding, compacting, molding, matched moulds of sand mold.Before during oil cylinder 7 level runs, drive operations such as pressure plate 6 is mainly finished the sand mold compacting, released mould assembly, back mould molding.Drive the operations such as die cavity that back-pressure plate 3 is mainly finished sand mold compacting, front mould molding, closed die mould chamber 4 by linkage 2, cam mechanism 1 during back oil cylinder 11 level runs.For guaranteeing the positioning accuracy of oil cylinder operation, adopt piston sealing device especially the service life of having improved piston 15, this device comprises inner seal ring 17, outer wear ring 14, piston 15, interior wear ring 16, exterior seal ring 13 and cylinder body 18.Between piston rod 19 and piston 15, be provided with described in wear ring 16 and two inner seal rings 17, between piston 15 and cylinder body 18, be provided with described outside wear ring 14 and two exterior seal rings 13.Piston 15 adopts overall structure, and interior wear ring 16 and outer wear ring 14 adopt the PTFE anti-wear band.
The utility model hydraulic pressure sand mold ejecting device adopts the unlatching and the closure of composite hydraulic cylinder control die mould chamber, finishes compacting, molding and the release of sand mold, and guide rod adopts Nonlubricated bearing.
Claims (4)
1. hydraulic pressure sand mold ejecting device, comprise die mould chamber, linkage, preceding oil cylinder and back oil cylinder, it is characterized in that: be provided with pressure plate between described die mould chamber and the preceding oil cylinder, another side in the die mould chamber is provided with the back-pressure plate, described back-pressure plate is fixed on the described linkage, end at described linkage is provided with a cam mechanism, the other end at described linkage is provided with two guide posts, the other end of described guide post is connecting described back oil cylinder, and described back oil cylinder is fixed on behind the oil cylinder on the stand.
2. hydraulic pressure sand mold ejecting device according to claim 1, it is characterized in that: before described, respectively be provided with a piston sealing device in oil cylinder and the described back oil cylinder, described piston sealing device comprises piston, cylinder body and piston rod, between piston rod and piston, be provided with wear ring and two inner seal rings in one, between piston and cylinder body, be provided with wear ring and two exterior seal rings outside one.
3. hydraulic pressure sand mold ejecting device according to claim 1 and 2 is characterized in that: wear ring is the PTFE anti-wear band in described.
4. hydraulic pressure sand mold ejecting device according to claim 3 is characterized in that: described outer wear ring is the PTFE anti-wear band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200983813U CN201960090U (en) | 2011-04-02 | 2011-04-02 | Hydraulic sand mold pushing out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200983813U CN201960090U (en) | 2011-04-02 | 2011-04-02 | Hydraulic sand mold pushing out device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201960090U true CN201960090U (en) | 2011-09-07 |
Family
ID=44522616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200983813U Expired - Fee Related CN201960090U (en) | 2011-04-02 | 2011-04-02 | Hydraulic sand mold pushing out device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201960090U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962405A (en) * | 2012-12-21 | 2013-03-13 | 青岛双星铸造机械有限公司 | Sand core pressure-casting servo driving system of vertical parting molding machine |
| CN104057036A (en) * | 2014-06-04 | 2014-09-24 | 鸡泽县创捷机械科技有限公司 | Vertical parting molding machine system |
| CN113198980A (en) * | 2021-05-19 | 2021-08-03 | 常州巧捷铸造设备有限公司 | Middle box propulsion device of clay sand molding machine |
-
2011
- 2011-04-02 CN CN2011200983813U patent/CN201960090U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962405A (en) * | 2012-12-21 | 2013-03-13 | 青岛双星铸造机械有限公司 | Sand core pressure-casting servo driving system of vertical parting molding machine |
| CN104057036A (en) * | 2014-06-04 | 2014-09-24 | 鸡泽县创捷机械科技有限公司 | Vertical parting molding machine system |
| CN113198980A (en) * | 2021-05-19 | 2021-08-03 | 常州巧捷铸造设备有限公司 | Middle box propulsion device of clay sand molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20120402 |